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Air Conditioning/Defrost Noise (from caller)

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About 2 weeks ago a caller indicated that there is a “chirping” noise when he used his defrost and/or his air conditioning. It was determined that his compressor is failing and would need to be replaced. His call was a duplicate of my problem! My question is: If I am not concerned about the air part, will I be in danger of losing the capability to use the defrost also at some point. I am just not sure I want to make an expensive repair on an older car. My noise has been there about 6 months. How long can I stretch this out?

Once the compressor fails, you will still get hot air out of the defroster. It just won’t be dehumidified air anymore. Depending of where you live, this might be a major or a minor issue.